N55 F87 M2 Catback ExhaustControl the sound. Transform the experience. The F87 M2 N55 has a strong personality, but the factory exhaust holds it back with muted volume and limited character. Our Valved Catback Exhaust unlocks the engines true voice, delivering a deeper, fuller tone when you want it, and refined civility when you dont. Featuring a vacuum actuated rear muffler, this system gives you full control over sound levels at the push of a button. Valves closed provides a
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